Mechanical behaviors of C/SiC pyramidal lattice core sandwich panel under in-plane compression

2019 ◽  
Vol 214 ◽  
pp. 103-113 ◽  
Author(s):  
Yanfei Chen ◽  
Lu Zhang ◽  
Yunong Zhao ◽  
Rujie He ◽  
Shigang Ai ◽  
...  
Keyword(s):  
Sandwich Panel ◽  
Mechanical Behaviors ◽  
Plane Compression ◽  
Lattice Core

scholarly journals Novel Sandwich Panel with Interlocking Plywood Kagome Lattice Core and Grooved Particleboard Facings

BioResources ◽  
2015 ◽  
Vol 11 (1) ◽  
Author(s):  
Petr Klímek ◽  
Rupert Wimmer ◽  
Martin Brabec ◽  
Václav Sebera
Keyword(s):  
Sandwich Panel ◽  
Kagome Lattice ◽  
Kagomé Lattice ◽  
Lattice Core

Experimental and Optimization Study of Compression Behavior of Sandwich Panels with New Symmetric Lattice Cores

2021 ◽  
pp. 146442072110497
Author(s):  
Hossein Norouzi ◽  
Masoud Mahmoodi
Keyword(s):  
Sandwich Panel ◽  
Sandwich Panels ◽  
Weight Ratio ◽  
Quantitative Relationship ◽  
Compression Tests ◽  
Design Variables ◽  
Optimization Study ◽  
Predicted Values ◽  
Lattice Core ◽  
Initial Peak

The paper presents a novel core design for sandwich panels and conducts an experiment to determine whether the mechanical strength of symmetric aluminum lattice core sandwich panels can be improved. Both Design of Experiments (DOE) and Response Surface Methodology (Box-Behnken) were used to establish a quantitative relationship between the strength-to-weight ratio and the input parameters. The thickness of the sheet, the height of sandwich panels, and the width of the seat were all considered design variables to achieve the optimal state. The maximum Initial Peak Crushing Forces (IPCF) were then determined using quasi-static axial flatwise compression tests. This study found that the model's predicted values were consistent with the experimental results. As a result, the parameters were optimized using the Design-Expert software to maximize the initial peak force while minimizing the weight. The results were validated using the Genetic Algorithm, NSGA2, and LINGO. The results indicated that the height of the sandwich panel and the thickness of the sheet had the most significant impact on the maximum force and panel weight. To this end, it is concluded that introducing a novel core design for the sandwich panel, utilizing a suitable Snap-Fitting method for attaching lattice parts rather than using a paste, and finally optimizing the core were the primary reasons for achieving this level of strength.

Experimental and numerical investigation on bending and compressive behavior of carbon-epoxy sandwich panel with novel M-shaped core

2022 ◽  
pp. 089270572110466
Author(s):  
Himan Khaledi ◽  
Yasser Rostamiyan
Keyword(s):  
Polyurethane Foam ◽  
Sandwich Panel ◽  
Sandwich Panels ◽  
Bending Tests ◽  
Three Point Bending ◽  
Composite Sandwich ◽  
Compressive Loads ◽  
Lattice Core ◽  
Force Displacement ◽  
Good Agreement

Present paper has experimentally and numerically investigated the mechanical behavior of composite sandwich panel with novel M-shaped lattice core subjected to three-point bending and compressive loads. For this purpose, a composite sandwich panel with M-shaped core made of carbon fiber has been fabricated in this experiment. In order to fabricate the sandwich panels, the vacuum assisted resin transfer molding (VARTM) has been used to achieve a laminate without any fault. Afterward, polyurethane foam with density of 80 kg/m3 has been injected into the core of the sandwich panel. Then, a unique design was presented to sandwich panel cores. The study of force-displacement curves obtained from sandwich panel compression and three-point bending tests, showed that an optimum mechanical strength with a considerable lightweight. It should be noted that the experimental data was compared to numerical simulation in ABAQUS software. According to the results, polyurethane foam has improved the flexural strength of sandwich panels by 14% while this improvement for compressive strength is equal to 23%. As well as, it turned out that numerical results are in good agreement with experimental ones and make it possible to use simulation instead of time-consuming experimental procedures for design and analysis.

High temperature mechanical behaviors of lightweight ceramic corrugated core sandwich panel

2017 ◽  
Vol 176 ◽  
pp. 379-387 ◽  
Author(s):  
Kai Wei ◽  
Yong Peng ◽  
Zhaoliang Qu ◽  
Rujie He ◽  
Xiangmeng Cheng
Keyword(s):  
High Temperature ◽  
Sandwich Panel ◽  
Mechanical Behaviors

A postbuckling solution for debonded sandwich panel under in-plane compression

1997 ◽  
Author(s):  
Chiachung Lee ◽  
Larry Mignosa ◽  
Mehmet Basci ◽  
Chiachung Lee ◽  
Larry Mignosa ◽  
...  
Keyword(s):  
Sandwich Panel ◽  
Plane Compression
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